document.write( "Question 420802: can you help me graph this equation x^2+2x+5 \n" ); document.write( "
Algebra.Com's Answer #293926 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! can you help me graph this equation x^2+2x+5 \n" ); document.write( "---------- \n" ); document.write( "y = x^2+2x+5 \n" ); document.write( "---- \n" ); document.write( "It is a parabola opening upward. \n" ); document.write( "It has a minimum at x = -b/2a = -2/2 = -1 \n" ); document.write( "Then f(-1) = 1-2+5 = 4 \n" ); document.write( "So vertex at (-1,4) \n" ); document.write( "--- \n" ); document.write( "Y-intercept = f(0) = 5 \n" ); document.write( "---- \n" ); document.write( "Plot the vertex and the point (0,5) \n" ); document.write( "and draw a parabola opening upward though them to get: \n" ); document.write( " \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |